It's probably a good time to recap for everyone what we know is coming in 3.2 so far, as well as potential changes based on Blizzard comments. Keep in mind that 3.2 isn't even on the PTR yet, so anything announced so far or those possible changes may not make it into the final 3.2 build. We saw this with the ammo changes and 3.1.
Patch 3.2 - What We Know
General
- The mount system will be changed to allow training of mount skills at lower levels. This applies to class-specific travel abilities as well. (Source)
- A new zeppelin between Orgrimmar and Thunder Bluff will be added. (Source)
- Portals to the Stair of Destiny in Hellfire Peninsula will be added to Orgrimmar and Stormwind City. (Source)
- Players will receive the flight path from the Stair of Destiny to Shattrath City automatically. (Source)
- More changes to the Argent Tournament will be made, and new rewards added. (Source 1 | Source 2)
Raids & Dungeons
- A new instance, called Crusaders' Coliseum is added for 5, 10 and 25-player groups and raids. This is an instance similar to the Ring of Blood. (Source)
- Ironbound / Rusted Proto-Drakes will be removed from the Ulduar achievements. New rewards will be added with an Argent Coliseum achievement. (Source 1 | Source 2)
Player versus Player
- Arena Season 7 will begin after the release of 3.2, with new rewards. (Source)
- Isle of Conquest, a new battleground similar to Alterac Valley and Arathi Basin, will be added. (Source1 | Source 2)
Professions
- Jewelcrafting
- Dragon's Eye gems will no longer be considered "Prismatic," and qualifying jewelcrafters who have cut Dragon's Eye gems will be compensated with Dalaran Jewelcrafter Tokens.
Druid
Paladin
- Changes will be made to improved Holy gameplay in terms of healing. (Source)
- Exorcism will be changed. (Source)
Shaman
- Base health will be increased to be similar to other classes. (Source)
What Might Be Coming
General
Player versus Player
- The ability to level via battlegrounds. (Source)
Professions
- Engineering
- Nitro Boots may be changed again (this time positively though). (Source)
- Fishing
- Changes to fishing; an "overhaul" possible. (Source)
Druid
- Balance DPS rotation improvements, including a possible Brain Freeze-like mechanic. (Source)
Hunter
- PvP improvements to increase their Arena representation. (Source)
Paladin
- Changes to make MP5 a more desirable stat for Paladins. (Source)
- A new cooldown for Protection Paladins and tanking. (Source)
- Retribution changes to remove frontloading reliance and smooth out DPS rotations. (Source)
Shaman
- A new totem placing system that allows 4 totems to be dropped at once. (Source)
- "Totem Stomping" macros will be disabled, forcing pet classes to target a totem to destroy it the same way other classes need to. (Source)
- Low-level Shaman will be able to trade in their totems for a single totem that can be equipped in the relic slot. (Source)
- The range of totems will be evaluated to ensure their usefulness on raid bosses. (Source)
- Buff totems replaced with normal spells. (Source)
- More totems merged together. (Source)
- Chain Heal improved. (Source 1 | Source 2)
- PvP mobility addressed. (Source)